A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6645-00-127-3835
NSN 5975-00-489-5308
NSN 5950-01-527-7046
NSN 6645-00-095-6956
NSN 5935-00-086-7134
NSN 6645-00-140-5173
NSN 7035-00-442-1869
NSN 6145-01-419-0796
NSN 6130-01-434-2035
NSN 5998-00-955-5901
NSN 5925-01-399-6777
NSN 5835-00-315-3797